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(Article of periodic en Anglais - 2013)

Document title

Soil water repellency in rangelands of Extremadura (Spain) and its relationship with land management

published at : Long-term degradation of fragile landscape systems

Authors(s) and Affiliation(s)

SCHNABEL S. (1) ; PULIDO-FERNÁNDEZ M. (1) ; LAVADO-CONTADOR J.F. (1) ;
(1) GeoEnvironmental Research Group, Univ. de Extremadura, Cáceres, ESPAGNE

Abstract

The aims of this work are to determine the degree and spatial occurrence of soil water repellency and to define its relationship with site characteristics, such as soil, vegetation and land management in rangelands of SW Spain. Field work was conducted in September 2009 in 22 environmental units belonging to 10 farms, distributed throughout the region of Extremadura. The Molarity of an Ethanol Droplet (MED) method was used for measuring water repellency of the soil surface. With respect to ground cover, water repellency was highest at sites covered by holm oak litter. At soil surfaces covered by cork oak litter, dry grass and mosses the degree of repellency was lower. Almost all sites with a bare soil surface were hydrophilic. A significant positive relationship between livestock density and the degree of bare soil existed, and consequently, areas with high animal numbers were dominantly hydrophilic. No significant relationships were encountered between the degree of soil water repellency and soil properties

Source

Thematical fascicle

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 103 [pp. 53-61]

Bibliographic references : 1 p.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.11.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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